Answer:
Step-by-step explanation:
The first step is to take p on both sides:

On the right hand side, cancel p and -p, since
. The equation will be:

Then, divide both sides of the equation by p*t:

On the right hand side, p*t can be cancelled:

Answer:
0.6 = 60% probability that it is either sunny or rainy.
Step-by-step explanation:
We solve this question treating these events as Venn probabilities.
I am going to say that:
Event A: Rain
Event B: Sun
The chance of rain is 20%
This means that 
The chance of it being sunny is 60%
This means that 
The chance of it being sunny and rainy at the same time is 10%.
This means that 
Calculate, the probability that it is either sunny or rainy.
This is:

0.6 = 60% probability that it is either sunny or rainy.
Answer:
Quadrant 2
Step-by-step explanation:
Convert radians to degrees
7pi/8(180/pi)
1260/8=157.5
157.5 degrees would fall into quadrant 2
Answer:
A(-5,9)
Step-by-step explanation:
Let A(a,b)
Since M is the midpoint then of A(a,b) and B(3,-5) then
M( (a+3)/2 , (b-5)/2)
But it is given that M(-1,2)
So (a+3)/2 = -1 which implies a=-5
and (b-5)/2=2 which implies b=9.
Therefore A(-5,9)